Water-heater attachment for furnaces



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an improved device for supplying hot waterV i Patented Apr. 10, 1928.v

UNITED i STATES rama .1. woon; or Das nomas, Iowa.

WATER-HEATER ArrAcHMENr l:rois rUnNAcEs.

Application filed March 10, 1924. Serial No'. 698,344.

This invention relates to improvements .in means for heating water forhot water supply for domestic purposes. Y y

vThe object of my invention is to provide to what is commonly known asthe hot water boilers or tanks, the said device. being of simple,durable and inexpensive constructionL and so arranged and constructedthat it may 1o be easily and quickly applied to thel furnace of theordinary house heating system, w hich may be either steam or hot wateror similar system, and when applied the device will very p rapidly andeconomically heat the water.

More specifically it is the object of my invention to provide.. aheating unit having a comparatively large amount of heating surface andadapted to be placed into a house heating furnace of the ordinary typethrough the fuel door, the device being so arrangedthat when appliedwaterl may.

- be made to circulate through'the device and to be heated by the fuelwithin the furnace.

The device being provided with connections operator.

so arranged that the circulating water from the heater may-be made`toeither circulate through an auxiliary water tank or through the househeatingvsystem at the will of the The ldevice is to be preferably y usedwith that type )of furnaces which employs a liquid fuel burner.

` My invention consists in the construction, arrangement and combinationof the various parts of the device, whereby the objects contemplated areattained, aslhereinafter'more fullyset forth, pointed out in my claims,

and illustrated in the accompanying draw-v ings, in which:

Figure 1 is a side elevation of my imroved device showingqthe manner-in-which 1t is connected to a hot water tank, and al@ showing the mannerinwhich it is'mounted in the heating system, the heater of the saidsysFtem being shown in section.

takerlbn the line 2-2 of Fi re 1. c

The numeral 10 indicates the hot water tank of the ordinary constructionmounted' on a supporting base 11. The tank 10 is provided with an outletpipe 12 and an inlet pipe13 which are connected to the water pipe systemof a dwelling. The tank 10' 1s also providedwith an inlet circulatmgIp1pe 14' and an outlet circulating pipe 15 which re' 2y is a Lhorizontal sectional view' are also of the usual construction andarrangement.

- The numeral 16 indicates a hot water heated which may be of any of theordinary types 1n common use or it may be of the steam or vapor-type.The heater 16 is provided with water compartments 17, a door opening 18land a fuel burner 19. The burner 19 is prefing room of the dwelling.Burners of this type are usually placed in about the same positionthatthegrates of a coal burning furnace would assume.

' The heater is provided with vthe usual water heating coil 20 whichcomprises a U- shaped pipe extending .into the re box of the furnace,having one end of the said pipe connected with the inlet pipe 14 of thehot water supply tank, and its opposite end connected with the outletpipe 15 by means of suitable elbows 21 and laterally extendin pipeportions 22. The coil 2O together wit the pipes 11.1L and 15 aresubstantially of the ordinary construction. The coil 2O is placed in thefire box in the usual manner and provides means whereby under certainconditions the tank 10 is supplied with hot water y in thesusual manner.J

This arrangement is suicient to give plenty. of hot water under ordinaryconditions during the winter months while the heater is beingcontinuously used. To provide ymeans for supplying hot water for laundrypurposes and the like during the summer months when the heater 16 is notbeing used, I have applied an auxiliary water hea-ting element which Ihave placed manner that the' burner 19 may be em-` ployed to heat thewater in the'tank 10.

My improved device comprises a metal casing 23 formed hollow and of suchshape and dimensions'as to substantially ll the. fuel door of thefurnace. The said casing 23 is provided with a back wall 24, a frontwall 25, a top 26, a bottom 27 and end walls 28. Theback 24:.is drilledand tapped with two rows of openings 29 and 30. The openings 2,9 extendnear the` top .member 26 and the openings 30 just above the bottommember 27. The openingsh 29 and 30 are designed to receive the ends ,ofthe pipes 31 which extend horizontally into the furnace re box, and havetheir inwardly extending ends provided with elbows 32 connected bycation with the water compartments 17.

The T 35 is also provided with an outwardly extending pipe 41 in whichis a union 42 .and a cut-off valve'43. The pipe 41` is con-' ,tendinginto the combustion chamber.

nected to a T 44 included in the pipe 14.

neeatao water for any purpose desired, without the Y expense of anadditional burner or controllin mechanism. i

y providing the unions 37', 42, 47 and 51 I have provided means wherebythe heating unit may be easily and quickly attached or detached, and maybe entirely removed from the furnace during the winter months ifdesired, or any time when the furnace is continuously operated; or byclosing the valves 43, and 48 and leaving the heater attachment in thefurnace and openingthe valves 38 and 52, ,I have provided means wherebythe water in the member 23 will be brought -into communication with thecompartment 17 and a complete water circulation will be establishedthrou h the coils The front wall 25 is also provided with an 6.1,- thehot Water from said coi s being de` p outwardly extending pipe 45 whichincludes 11i/ered t0 the Compartment 17 and Caused a T 46 a union 47 anda vcut-oif valve 48. tOLeIltel the regular heatihg System.

The union 47 is between the vT 46 and the `This provides an arrangementwhich is valvel 48. The outer end of the pipe 45 is VeryA desirable evenduring .the winter connected to a T 494 in the pipe 15. The mOIlthsWhile .the furnace iS being COIltlilu- T 46 is provided with adownwardly extend- Ously operated, and especially in the spring ing pipe5() in which is included a, union 51 and fall. Whenit is desired to usea comand a cut-oif valve 52. `The downwardly ex paratvely large amountof water from the tending end ofthe pipe 50 is provided-,with tank 1Q`for washing purposes, under ordian elbow 53 and yan inwardly extendingpipe nary circumstances but al very small por- 54 which is also incommunication with the tion ofthe watei` in the tank 10 Will watercompartments 17 at a4 point near the heated. It will be. seen thatthevalves above "l bottom of said compartments. referred' to may be easilyand uickly ad- By this arrangement it will be seenthat justed to placethe coils 31 in irect com- .I'have provided a water heating attachmentyIlfldllicliOIl With either the Compartment 17 which may be mounted inthe door opening Lor the tank 10. yIf lthe coils are in comof a furnacewith the heating pipes 31 exmunication with the tank 10 for the purpose,above stated, the coil 31 may also be left It will be seen that thevpipes 31Y are in in communication with the tank until sutilcommunicationwith the tank 10 by means cient amount of hot water is provided for ofthe pipes 15 and 45, the compartment 17, said tank, after which thewater in the coils the pipes `34 and 41 and the pipe 14. It 31 may beplaced into the compartment 17 105 will also be seen that if fuel fromthe burner and all 0f the heat from the bll-llll- 1.9 Uti- 19 is ignitedthe heat from the saidv fuel lized-economically. f will heat the waterwithin the p-ipes 31, YIt will also be seen that this devicecouludcausing the circulation through the pipes be applied to the ordinarycoal burning furwith the water in the casing 23. The heated nace, itonly being necessary to provide al1 110,

water in the casing 23 will flow outwardly. additional 'opening which toplace the lper end of the tank10, permiting the cold through the pipes34, 41 and 14 to the upmember 23. v J.

I'claim as my invention:

water from the bottom of the tank 10 to 1.. In combination, a' hot waterfurnace piss through the ipes 15 and 45. It will having a fuel dooropening, a hot water 115 seen that this circulation will be continsupplytank, an auxilia heating unit deuous as long as the burner 19 is inoperation, tachably moimted in sai door opening and and'on account ofthe coils 31, being placed extended within the combustion chamber of inposition immediately above the burner, said furnace, means forcommunicating said as clearly shown in 4the drawings, a very heatingunit with said supply tank or with 120.

small amount of the heat from `the burner the water compartment of saidfurnace, said will be taken upby thewater from the lcommunicating meansincluding means compartments 17, and that in aI fews minwhereby the saidheating unit may be quickutes time the water in the tank 10 will belydetached therefrom. come sui'iciently hot for whatever purpose 2. Incombination, a hot water furnace f125 it is desired at which time thefuel f the having a fuel supply ,opening and a water burner 19 is turnedoff, which provides compartment, a hot water supply tank, a. meanswhereby the burner ofL the furnace, heating coil for said'furnace incommunicawhich is already installed, ma be utilized tion .with saidsupply tank, an auxiliary for the purpose` of supplying eat for hotheating element detachably mounted in saidv having a fuelsupply openingand Water` compartment, a hot` water supply tank, a heating coil forsaid furnace in communica,-

tion with said supply tank, an auxiliary.

heating element detachably mounted in said .fuel supply opening and'extended in the combustion chamber rof said furnace, means forcommunicating said auxiliary heating element with said hot water supplytank, means for communicating -said auxiliary vheating unit with thewatercompartment of "said furnace, said communicating means beingadapted to communicate said auxiliary unit with either the hot watersupply tank or the water compartment of said furnace at the will of. theoperator including means whereby. the auxiliary heating element may bequickly detached, and vmeans for applying heat to said coils'. K

4. In combination, a hotV water furnace having a hot water compartment,a fuel door opening anda heating element extending into the fire pot ofsaid furnace, 'a hot water supply tank said tank being ,provided with aninlet and outlet 'circulating pipe, a casfing having a water chamberdetachably mounted in the said door openin a series of pipes extendinginwardly om said chamber, and incommunication therewith, into thecombustion chamber of said furnace above said heating unit, an outletpipe for said water chamber in communication withthe inlet pipe of saidsupply tank, a valve and a union for said outlet pipe, a p1pe incommunication. withjsaid outlet pipo and in communication with the watercompart-V ment of said furnace, a valve andia union for thelast saidpipe, an inlet pipe for said water chamber in communication with theoutlet pipe of said water chamberin communicationwith the outlet pipe ofsaidV A water supply tank, a valve and a union` for the last said inletpipe, a pi e in communication with the last said i et pipe and incommunication with the said water compartment of said furnace, and avalve and a union for ,the lastsaid pipe.

5. A detachable .heating unit for furnaces l of the class" describedcomprising a casing having a water chamber, a series of heating pipes incommunication with said chamber, said casing'being adapted to fit andrest in the door opening of a furnace, an outlet pipe?.

for saidcasin including a T anda valve,- a branch pipe or said T, saidbranch pipe also being provided with a valve, lsaid casing memberalso-being provided with an inlet pipe havin avalve and a T, said secondT being provided witha branch pi ve and said branch pipe-.having avalve, for t e purposes stated.

6. In combination, a hot water furnace having a fuel door opening, a hotwater supply tank, an auxiliary heating unit designed to it and'bedetachably mounted in said door opening', having heating members'extending into thecombustion chamber of said furnace,

and. means for communicating said heating' f C`unit with either th watercompartment .of said furnace or with said s upply tank. N v 7. Incombination, a hot water' furnace having a fuel door opening, a hotwater supply tank, an auxiliary heatlng unit designed to lit and bedetachably mounted said` door opening, and means for communicating saidheating unit with either the water comv partment of said furnace or withsaid. supplytank. Y 3

'f` 'FRANZ J. Woon.`

